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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: J Biomater Sci Polym Ed. 2017 Feb 5;28(6):532–554. doi: 10.1080/09205063.2017.1286184

Figure 1.

Figure 1

Schematic of printed scaffolds. (a) PPF-HA (10 wt%) scaffold with or without SDS. (b) PPF-HA bilayer scaffold containing PPF and PPF-HA (10 wt%). (c) PPF-HA gradient scaffold containing layers of 1.25, 2.5, 5, and 10 wt% HA. Respective SEM cross-sections of (d) a PPF-HA scaffold with or without SDS, (e) a PPF-HA bilayer scaffold, and (f) a PPF-HA gradient scaffold. Pore interconnectivity is lost with the addition of multiple materials. Scale bars in (d)–(f) represent 0.5 mm. Rotated views of (d)–(f) are presented in their respective supplemental figures, Figures S1–3.